## Warning: Removed 5 rows containing missing values (geom_path).
## Warning: Removed 5 rows containing missing values (geom_path).
## Warning: Removed 20 rows containing missing values (geom_path).
## Warning: Removed 19 rows containing missing values (geom_point).
## Warning: Removed 20 rows containing missing values (geom_path).
## Warning: Removed 19 rows containing missing values (geom_point).